Why should you avoid over-tightening duct joints during installation?

Why should you avoid over-tightening duct joints during installation?

• A. It reduces air leaks
• B. It causes joints to loosen automatically
• C. It can damage duct or restrict airflow, and cause leaks
• D. It makes joints easier to inspect

Answer: (C)

Over-tightening duct joints can crush or deform the duct walls and warp the seams, which weakens the joint and can create gaps. This not only damages the duct but also narrows the interior passage, increasing resistance to airflow. With restricted airflow and a compromised seal, you’re likely to develop leaks and hot, lint-filled air can escape, raising fire risk and reducing dryer efficiency. In short, you tighten to seal without deforming, because excess force breaks the duct and hurts performance.

Over-tightening duct joints can crush or deform the duct walls and warp the seams, which weakens the joint and can create gaps. This not only damages the duct but also narrows the interior passage, increasing resistance to airflow. With restricted airflow and a compromised seal, you’re likely to develop leaks and hot, lint-filled air can escape, raising fire risk and reducing dryer efficiency. In short, you tighten to seal without deforming, because excess force breaks the duct and hurts performance.